/Engine/Plugins/Runtime/MassEntity/Source/MassEntity/Public/MassProcessingTypes.h
Creates a runtime instance of every processors in the given InProcessors array. If a processor of that class already exists in Processors array it gets overridden. Otherwise it gets added to the end of the collection.
void AppendOrOverrideRuntimeProcessorCopies ( TConstArrayView< const [UMassProcessor](API\Plugins\MassEntity\UMassProcessor) * > InProcessors, [UObject](API\Runtime\CoreUObject\UObject\UObject) & InOwner )